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Peculiar anatomical traits, high durability, and potential ornamental use of Cyclanthaceae as fresh foliage 42
MEDINA,MARIA CAMILA; HOYOS-GÓMEZ,SAÚL E.; DEMARCO,DIEGO; TUBERQUIA,DINO.
ABSTRACT Wild plant species with potential for use as ornamental green foliage are often reported. Nevertheless, there are few studies evaluating morphological and anatomical aspects associated with this use. Preliminary trials suggest that the species of Sphaeradenia (Sander ex Mast.) Harling, a Cyclantaceae that occurs from Costa Rica to Peru, is suitable to be used as fresh foliage because of attractiveness of their leaves in vase and its durability without showing tissue damage, compared with other genera of this family. Through the study of anatomical characters, it is possible to predict the potential of a species that can serve as ornamental foliage. In this study, three foliar anatomical features (thickness of the cuticle and leaf, and percentage...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Cuticle; Fibers; Mesophyll; Sphaeradenia laucheana.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502399
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Transfer cells in trichomatous nectary in Adenocalymma magnificum (Bignoniaceae) 42
GAMA,THÁLIA S.S.; AGUIAR-DIAS,ANA CRISTINA A. DE; DEMARCO,DIEGO.
ABSTRACT Transfer cells are specialized cells that play an important role where there are high energy costs due to facilitation of transmembrane flow of solutes. This study aimed to investigate the ontogenesis, histochemistry and ultrastructure of glandular trichomes focusing on stalk cells and their possible transfer function. Samples of prophylls of axillary buds, calyces of flowers in anthesis, and flower buds in different stages of development were collected, fixed and processed according to the common methods of microscopy. The glandular trichomes are composed of a secretory head with its cells in columnar format. The stalk is formed by two layers of cells, with the upper layer composed of cuboidal cells where the wall starts to thicken at the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glandular trichomes; Nectaries; Ontogenesis; Secretory structures; Wall ingrowths.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200527
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